
Blasts in Peripheral Blood Smear in Leukemia
A clinical case of 78% blasts found in the blood of a 92-year-old patient. Hematology analyzer data, cytopenia, and microscopic smear findings.
Blood and bone marrow morphology, clinical cases and diagnostic algorithms. Most of the library is in Russian; the English section is growing.
Most of our material is written in Russian — that is the working language of the community. A few pieces exist in English; the rest of the library is one click away and the photographs need no translation.

A clinical case of 78% blasts found in the blood of a 92-year-old patient. Hematology analyzer data, cytopenia, and microscopic smear findings.

The causative agent of trichinellosis: Trichinella nematode life cycle, migration and encapsulation of larvae in striated muscles, microscopic features.

Microscopic image of visceral leishmaniasis in a bone marrow preparation: detection of Leishmania amastigotes inside a macrophage by light microscopy.

Morphology of flaming plasma cells in bone marrow aspirate in multiple myeloma. Cytoplasmic features and diagnostic significance.

Cytological picture of bone marrow aspirate: pronounced hyperplasia of the granulocytic lineage, with signs of suppression of other lineages.

Clinical case of Merkel cell carcinoma metastasis to an axillary lymph node: imprint cytology and differential diagnosis with lymphoma.

What are knizocytes, how do red blood cells with two concavities look in a blood smear, and what pathologies do they indicate? Diagnosis in hemoglobinopathies.

Bone marrow morphology in parvovirus B19 infection: characteristics of giant proerythroblasts, erythropoiesis features, and laboratory diagnostics.

Cytological features of large cell neuroendocrine carcinoma metastasis to a supraclavicular lymph node: tumor cell morphology and differential diagnosis.

Microscopy of a native stool sample with Lugol's solution: detection of fungal mycelium and spores during coprological examination in a child.

A clinical case of Hodgkin lymphoma: nodular sclerosis. Cytology of a biopsy touch imprint: Hodgkin and Reed-Sternberg cells among lymphocytes.

Analysis of typical errors in the clinical laboratory: preanalytical stage, critical hemogram values, normoblasts, and quality control of studies.